The "dl'(JIIl<lgn of PWM Call/rolled rectifiers all ph"u c",wolled OliC. <Ire w",,,. So, ill order 10 oh",;1i " pet/O"''''''I d.c. JO"ra fm",,, three_plwu redifler. tirO PWM JlrllcllOres are generall)' us~d_ The ':0"'1>(11";"''' "f PWM... more
Controller tuning is deemed to be critical when dealing with the voltage oriented control (VOC) as it ultimately defines the system performance. This paper contributes to the tuning issue associated with VOC in three key points. Firstly,... more
Two controlled-current pulsewidth-modulated (PWM) con- verters have been integrated into rectifier-inverter links of variable-speed ac motor drives. The authors focus on developing a mathematical model of the rectifier-inverter link and... more
Position controllers must handle kinetic energy exchanges during acceleration and deceleration of large inertias. Temporary buffer storage in capacitors is expensive. The system that can manage the power exchange with ease is the... more
This paper describes the application of a single-stage unity-power-factor buck-type pulsewidth modulation (PWM) rectifier to medium-and high-power variable-speed dc motor drives. The advantages of the developed system are low harmonic... more
PWM bridge rectifiers with GTO switches are considered for application to particle accelerator magnet power supplies, where two-quadrant operation and extremely low dc current ripple are required. Different control strategies, with both... more
Direct power control (DPC) is one of the newest techniques to control the PWM converter without network voltage sensors. This control technique is built on the idea of direct torque control (DTC) for an induction motor, which is applied... more
Modelling and Control of Single-Phase Bidirectional AC/DC Converter Used in Microgrid Energy Systems
In this study, bidirectional single-phase PWM AC/DC converter that is used in microgrid systems at connection point to the grid, is modelled and controlled. PWM signals of the converter is generated with hysteresis current control... more
Modelling and Control of Single-Phase Bidirectional AC/DC Converter Used in Microgrid Energy Systems
In this study, bidirectional single-phase PWM AC/DC converter that is used in microgrid systems at connection point to the grid, is modelled and controlled. PWM signals of the converter is generated with hysteresis current control... more
Este trabalho apresenta um sistema UPS (Uninterruptible Power Supply) line-interactive monofasico, destinado a aplicacoes de baixa potencia. Dois conversores Push-Pull operando com baixa tensao no barramento CC sao utilizados para... more
This paper presents a comprehensive and systematic approach in developing a new switching look-up table for direct power control (DPC) strategy applied to the three-phase grid connected three-level neutral-point clamped (3L-NPC) pulse... more
In the last years, many papers about research on PWM rectifiers have been published, these converters are widely used in power electrical networks, wind and solar power AC-DC interfacing, and in many other industry applications. In this... more
Controlling a PWM rectifier can be challenging due to the bilinear nature of its averaged model. This paper introduces the use of the Butterworth approach to design and control an LCL-filter-based PWM rectifier with power quality... more
This research work investigates the various applications of a PWM rectifier based on its input power factor. Most of the cases, the papers describe the operation of the rectifier used for unity power factor (UPF) operation. Beside this... more
Fossil fuel prices and air pollution impel many countries to concentrate on renewable energy sources, of which wind energy is considered to be a pillar. Owing to the numerous advantages when compared with its three-phase counterpart,... more
Fossil fuel prices and air pollution impel many countries to concentrate on renewable energy sources, of which wind energy is considered to be a pillar. Owing to the numerous advantages when compared with its three-phase counterpart,... more
The isolated star point of a three-phase star-connection of singlephase unity power factor PWM rectifier systems (Y-Rectifier) results in a mutual coupling of the individual phase module outputs, i.e. the individual DC link voltage... more
The basic principle of operation of a three-phase PWM rectifier system formed by star-connection of three single-phase three-level PWM rectifier modules (three-level y-rectifier) is discussed based on space vector calculus. The mains... more
The three-phase Delta-Rectifier is formed by a deltaconnection of single-phase pulsewidth modulation (PWM) rectifier modules and has the advantage that it can provide full rated output power in the case of a mains phase loss. In this... more
In the recent days most of the industries uses Induction motors as the primary loads. In order to meet the total load requirement multiple motors are used. In this paper two Vector Controlled (VC) Induction Motors and a double closed loop... more
Disturbance of the climate due to greenhouse gases is the most unsafe and complicated of all the ecological problems. The main cause is the emission of carbon dioxide from fossil fuels, which produces around 80% of the world's energy.... more
Disturbance of the climate due to greenhouse gases is the most unsafe and complicated of all the ecological problems. The main cause is the emission of carbon dioxide from fossil fuels, which produces around 80% of the world's energy.... more
This paper analyzes a Digital Signal Processor (DSP) based One Cycle Control (OCC) strategy for a Power Factor Corrector (PFC) rectifier with Common-mode Voltage (CMV) immunity. It is proposed a strategy that utilizes an... more
O presente trabalho apresenta uma técnica de sincronização baseado em separação de componentes em sequência com objetivo de garantir o adequado funcionamento dos sistemas de controle dos conversores de potência utilizados em Geração... more
This paper presents a comprehensive and systematic approach in developing a new switching look-up table for direct power control (DPC) strategy applied to the three-phase grid connected three-level neutral-point clamped (3L-NPC) pulse... more
This paper deals with a battery energy storage system (BESS) in only one of its multiple operating modes, that is when the BESS is charging the battery bank and with the focus on the control scheme design for the BESS input stage, which... more
This paper deals with a battery energy storage system (BESS) in only one of its multiple operating modes, that is when the BESS is charging the battery bank and with the focus on the control scheme design for the BESS input stage, which... more
Control of PWM rectifier under grid voltage dipsThis paper investigates control structure for grid connected three-phase two-level Voltage Source Converter (VSC) under distorted grid voltage conditions. Grid voltage is distorted by... more
Este artículo presenta un resultado de investigación financiado con recursos propios en el que se expone un modelo en espacio de estados de un rectificador trifásico controlado active front end. Utilizando este modelo se deriva una ley de... more
This paper presents an improved dc-link voltage fast control strategy based on energy balance for a pulse width modulation (PWM) rectifier-inverter system to reduce the fluctuation of dc-link voltage. A conclusion is drawn that the energy... more
Controle de posição do atuador eletrônico da válvula wastegate da família de motores EA 211.
This research work investigates the various applications of a PWM rectifier based on its input power factor. Most of the cases, the papers describe the operation of the rectifier used for unity power factor (UPF) operation. Beside this... more
Five-level PWM current rectifier – Five-level NPC VSI – Permanent magnet synchronous machine cascade
The aim of this paper is to give a solution to unbalance problem of the input DC voltages of the five-level NPC-VSI used in high voltage and great power applications. For that, a Five-level PWM current rectifier-Five-level NPC VSI-PMSM... more
In this paper, improved sonsorless direct power control (DPC) of three-phase rectifiers is presented. The new system are based on virtual flux (VF) and notch filter using Second Order Generalized Integrator frequency located loop SOGI-FLL... more
In the last years, many papers about research on PWM rectifiers have been published, these converters are widely used in power electrical networks, wind and solar power AC-DC interfacing, and in many other industry applications. In this... more
This paper is dealing with single phase PWM rectifier parameter optimization. A control loop has been designed to attain a suitable output DC voltage with minimum ripple, input current with minimum harmonic and maximum input power factor.... more
Harmonics are a significant concern in gridconnected inverters, as they can cause various problems, including voltage distortion, equipment malfunction, and power quality degradation. To mitigate these issues, filters play a crucial role... more
Komponen penggerak yang sering digunakan sebagai sumber gerakan dalam berbagai perlalatan listrik adalah motor arus searah. Dalam berbagai keperluan, besanya kecepatan putaran motor arus searah sangat diperlukan untuk menentukan kinerja... more
This article introduces a novel and effective diagram based on direct instantaneous power control (DPC) of a PWM-controlled rectifier connected to the grid without a switching table. An optimum control vector of the PWM rectifier's... more
The PWM voltage source rectifier analyzed in this paper exhibits both continuous and discrete dynamic behavior and therefore represents a hybrid dynamic system. The jump condition between switching states is defined by the control space... more
Transmisi Tenaga Listrik yaitu Merupakan proses penyaluaran tenaga listrik dari tempat pembangkit tenaga listrik (Power Plant) hingga Saluran distribusi listrik (substation distribution) sehingga dapat disalurkan sampai pada konsumen... more
This paper presents a combined auto-tuned gain scheduling fuzzy PID and predictive control. Practical experiments in a nonlinear system are given to show the effectiveness of the control structures. Experimental results are carried out to... more
In this paper, a proposed control strategy is presented to improve the performance of the pulse width modulation (PWM) boost type rectifier when operating under different supply voltage conditions (balanced, unbalanced, and distorted... more
This paper describes the application of a single-stage unity-power-factor buck-type pulsewidth modulation (PWM) rectifier to medium-and high-power variable-speed dc motor drives. The advantages of the developed system are low harmonic... more
This paper proposes a model based on robust control for three-phase three-level Neutral Point Clamped (NPC) power converters. Based on the continuous averaged model of the power system, a Sliding Mode Control (SMC) technique is applied to... more